| Hartley H1 V8 | |
|---|---|
| Overview | |
| Manufacturer | Hartley Enterprises |
| Layout | |
| Configuration | 75°-90° V8, 32-valve, (four-valves per cylinder), petrol engine |
| Displacement | 2.5–3.3 L (152.6–201.4 cu in) |
| Cylinder bore | 81–84 mm (3–3 in) |
| Piston stroke | 63–74 mm (2–3 in) |
| Cylinder block material | Cast aluminium alloy |
| Cylinder head material | Cast aluminium alloy |
| Valvetrain | 32v DOHC (quad-cam) |
| Combustion | |
| Fuel type | Petrol |
| Oil system | Dry sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 420–520 hp (313–388 kW) |
| Torque output | 245–280 lb⋅ft (332–380 N⋅m) |
| Dimensions | |
| Length | 485 mm (19 in) |
| Width | 530 mm (21 in) |
| Height | 530 mm (21 in) |
| Dry weight | 200–212 lb (91–96 kg) |
The Hartley V8 engine is a series of a four-stroke naturally-aspirated DOHC V8 engines, designed, developed and built by American John Hartley and Hartley Enterprises, which has been produced since 2004. It was famously used in the well-known Ariel Atom 500 V8 sports car model.